Invention Grant
- Patent Title: Entropy coding of motion vector differences
- Patent Title (中): 运动矢量差的熵编码
-
Application No.: US15238294Application Date: 2016-08-16
-
Publication No.: US09596475B2Publication Date: 2017-03-14
- Inventor: Valeri George , Benjamin Bross , Heiner Kirchhoffer , Detlev Marpe , Tung Nguyen , Matthias Preiss , Mischa Siekmann , Jan Stegemann , Thomas Wiegand
- Applicant: GE Video Compression, LLC
- Applicant Address: US NY Albany
- Assignee: GE VIDEO COMPRESSION, LLC
- Current Assignee: GE VIDEO COMPRESSION, LLC
- Current Assignee Address: US NY Albany
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Main IPC: H04N19/13
- IPC: H04N19/13 ; H03M7/42 ; H04N19/124 ; H04N19/52 ; H04N19/70 ; H04N19/61

Abstract:
An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for horizontal and vertical components of the motion vector differences, and an Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences. A reconstructor is configured to reconstruct a video based on the integer values of the horizontal and vertical components of the motion vector differences.
Public/Granted literature
- US20160360204A1 ENTROPY CODING OF MOTION VECTOR DIFFERENCES Public/Granted day:2016-12-08
Information query